Open AccessResearch on Damping Characteristics of Interconnected Hydropneumatic Suspension considering the Effects of Hose and Check Valve
Author(s) -
Hongmin Zhang,
Xin Fang
Publication year - 2021
Publication title -
shock and vibration
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 45
eISSN - 1875-9203
pISSN - 1070-9622
DOI - 10.1155/2021/5526106
Subject(s) - suspension (topology) , body orifice , stiffness , damping ratio , structural engineering , magnetic damping , damping torque , engineering , mechanics , vibration , mechanical engineering , physics , mathematics , acoustics , direct torque control , electrical engineering , voltage , homotopy , pure mathematics , induction motor
The interconnected hydropneumatic suspension (ICHPS) has not only the nonlinear stiffness and damping of the independent hydropneumatic suspension (IDHPS) but also antiroll and antipitch functions. The existing analysis of hydropneumatic suspension damping mainly focuses on the orifice and check valve in the suspension cylinder. In this study, the calculation formula of the damping force of ICHPS is established, and the numerical simulation results show that the damping characteristics of the hydraulic hose cannot be ignored. The influence of check valve and hose on the damping characteristics is analyzed. Through the equivalent energy method, the equivalent compression damping ratio and the equivalent recovery damping ratio of the ICHPS are established. It is pointed out that when designing the damping characteristics of the ICHPS, it is necessary to select the orifices, check valves, and hose damping reasonably to make the damping characteristics get the best match.
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